All tools
BPM finder
Drop a song and find its tempo from its sound, on your device, nothing uploaded. Free, with no account or uploads.
Find a song's tempo
Drop a song; its beats are found from its sound. Music can be felt at half or double the tempo found.
Drop a song to find its tempo
MP3, M4A, WAV, OGG or FLAC. Its beats are found from its sound on your device; nothing is uploaded.
Stays on your device.
Clicks are put on the audio clock ahead of time, so they keep time even when the page is busy. What you hear is late by your speakers' own delay, which no page can measure. Nothing is sent or kept.
A little help along the way
Follow these steps. Every option is explained underneath. Everything runs in your browser.
- Say what you want to doKeep time, tap a tempo, or find a song's tempo.
- Set the tempoWith the stepper or a chip, from 20 to 300 beats a minute.
- Press StartThe first beat of each bar is higher; press Stop to end it.
Questions people ask
- Is my song uploaded?
- No. It is decoded by your browser and its beats are found on your device; nothing is sent or kept.
- How is the tempo found?
- From how suddenly the sound gets louder in a few bands, by the spacing that repeats best, the method of Ellis's beat tracker (2007), the same as KeepSimp's Reel maker uses.
- Why might it say half or double the tempo I feel?
- Music can be counted in two at once; the page gives half and double so you can choose the one you feel.
This page is the Metronome, opened for this one job; every other tool it has is one press away. Each of its settings is explained on the Metronome's own page.
Read the step-by-step guide